Car key shell (remote keyless entry transmitter / keyless remote).
This is a typical automotive key fob (also called a remote key or keyless entry remote). It is a handheld wireless device that communicates with a vehicle’s electronic system to lock/unlock doors, open the trunk, and trigger other functions without inserting a physical key.
Visible controls on this example:
Red “PANIC” button (top) — Activates the vehicle’s alarm/horn for emergency use.
Lock icon (top of the three lower buttons) — Locks the doors.
Unlock icon (bottom-left) — Unlocks the doors.
Trunk / hatch / open-door icon (bottom-right) — Opens the trunk or a specific door/hatch (exact function depends on the vehicle model).